Optimize group by for single partition topics #836
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Group by operations on topics with a single partition are now optimized to avoid creating a repartition topic. Instead, the messages are directly transformed to use the new key, as all messages go to the same partition.
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gwaramadze
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Apr 17, 2025
| @@ -135,15 +135,20 @@ def __init__( | |||
| registry: DataFrameRegistry, | |||
| processing_context: ProcessingContext, | |||
| stream: Optional[Stream] = None, | |||
| stream_id: Optional[str] = None, | |||
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Just a note. This proves that we need to rename it to state_id.
- Passing both
streamandstream_idis a rather strange API. - The
Streamclass does not feature anyiditself - counterintuitive.
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Group by operations on topics with a single partition are now optimized to avoid creating a repartition topic. Instead, the messages are directly transformed to use the new key, as all messages go to the same partition.